OK SO. I finally see how you did it since like 30 minutes ago I tested it out to use it. Thing is, why can't you see the player?

Yep, It's called a World Portal, when done right it can make beutiful illusions. But it can promote bad level design, one of the reasons why valve wanted to remove it from most of the game.

hmm uuuuhh hmm a mirror? no that wou- areaportal? like the one valve used in the moving test chamber?

@*Hunter* Interesting idea, but thats not how it works. Have you tried climbing to the top half of the room? Negative gravity will move things up but it wont flip your view; your head would be hitting the ceiling. The door in the room is not solid, you can walk through it and appear on the ceiling. See if you can figure it out, if not I can tell you what I used.

I've had this map in my mind for at least 1 week now, even when I subbed to it like 4-3 years ago. It's a well done map. But did you do your, "trick" with a trigger and then set the gravity to -600? If so, thats brilliant! You might have just solved my problem for a map I was making!

WAIT GRAVITY? DID YOU SET THE UPPER PART -600 GRAVITY?

If you want to know how to setup a level end ask damagey

Nice but you may want to note somewhere that they have to manually end the level. Otherwise testers may think you are spamming them and rate your level poorly.

@deli73 I keep on trying diferent ways, but for some reason the button wont trigger the end of the map.

WAS

cool, but the button doesn't end the level.
in other words, it's broken. :)